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Singlespeed & Fixed Gear "I still feel that variable gears are only for people over forty-five. Isn't it better to triumph by the strength of your muscles than by the artifice of a derailer? We are getting soft...As for me, give me a fixed gear!"-- Henri Desgrange (31 January 1865 - 16 August 1940)

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Old 10-15-10, 08:33 PM   #1
patthepunk
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Mystery feeling

I recently bought a new/used wheelset. I installed them after checking the cog and lockring. Installed it, check the chain line/tension; we were a.o.k. jumped on, and thought it was all good. After a few seconds i felt this almost thumping feeling in the pedals, from the rear cog. I havent a clue what it could be. I checked the cog, and it almost seem as though the teeth were bent, but i asked the guy who i bought it from, and he said that he had ridden them the day before, and didnt have an isse. Everything seems fine, i just dont get it. Im going to bring it to my LBS tomorrow, but until them i would like to get the opinion from you guys/gals.
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Old 10-15-10, 08:40 PM   #2
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Is it a sealed or loose ball hub?

If it's loose ball, sounds like the hub is too tight.
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Old 10-15-10, 08:56 PM   #3
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If possible, use a different cog and see if the problem persists--if so, it must be a wheel problem.
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Old 10-15-10, 08:59 PM   #4
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Yeah, im going to take the cog off tomorrow,and check it out. And also see what the LBS has to say. Thanks for the input guys.
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Old 10-16-10, 07:22 AM   #5
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its either love or the dark side of the force.
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Old 10-16-10, 07:48 AM   #6
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try reducing the chain tension. It may be too tight.
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Old 10-16-10, 10:36 AM   #7
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After furrther evaluation, it looks like the chain isnt the right size for the cog. It gets stuck on the cog, and not all the teeth sit flush with it.
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Old 10-16-10, 10:47 AM   #8
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Ah...the old 3/32" chain on a 1/8" cog trick.
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Old 10-16-10, 12:35 PM   #9
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yup. Easy fix though!
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Old 10-16-10, 07:00 PM   #10
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so what happens when you run 1/8 chain on a 3/32 fw/cog? The dbag at performance put a 332 fw and 1/8 cog on my 1/8 drivetrain.
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Old 10-16-10, 07:18 PM   #11
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so what happens when you run 1/8 chain on a 3/32 fw/cog? The dbag at performance put a 332 fw and 1/8 cog on my 1/8 drivetrain.
what a 'dbag.'
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Old 10-16-10, 07:18 PM   #12
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so what happens when you run 1/8 chain on a 3/32 fw/cog? The dbag at performance put a 332 fw and 1/8 cog on my 1/8 drivetrain.
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Old 10-16-10, 08:28 PM   #13
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I haven't ridden on it yet, so no supernova. He just told me that was what he put on, and that the 3/32 FW would be ok. I just don't know about the mix n match.
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Old 10-16-10, 08:57 PM   #14
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a 1/8" chain will be fine on a 3/32" freewheel, dont worry.
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Old 10-16-10, 09:36 PM   #15
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so what happens when you run 1/8 chain on a 3/32 fw/cog?
Nothing...or something, depending on how you look at it.
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Old 10-17-10, 02:11 AM   #16
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Nothing...or something, depending on how you look at it.
think you could be more vague? I get the idea though.
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Old 10-17-10, 09:55 AM   #17
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